Oar-lock



UNITED STATES PATENT OFFICE.

JULIU$ G. GOODWIN, OF-KALAMAZ()O, MICHIGAN.

' OAR-LOCK.

SPECIFICATION forming part of Letters Patent No. 235,355, dated December14, 1880.

Application filed April 29, 1880. (Model) To all whom it may concern:

Be it known that I, JULIUs U. Goonw1N,of Kalamazoo, in the county ofKalamazoo and State of Michigan, have invented a new and usefulImprovement in Oar-Locks, of which the following is a specification.

My invention relates to improvements in oar-locks in which two flangedrings are so arranged that they support between their flanges (and forma bearing for)a third or thole-pin ring, within the radius of which thetwoflanged rings before mentioned revolve, and in which the thole-pinring has two projections, between which athole-pin having a cross-headis inserted and secured by means of a bolt,

thereby forming a hinge or joint.

The objects of my invention are, -first, to provide a system whereby anoar can be easily held in horizontal position 5 second, to relieve theoar of unnecessary friction by means of a joint or hinge between the oarand the point of its conjunction with the boat; third, to pro-- vide, inconjunction with the above, a system which is susceptible of impartingan easy rotary motion to the oar to which itis attached, or, in nauticalparlance, to enable the operator to feather the car with greater easeand facility. 1 attain these objects by means of the appliances in theaccompanying drawings.

1n the accompanying drawings, in which similar letters of referenceindicate like parts, Figure 1 is a perspective of a device embodying myinvention. Fig. 2 are the detached parts of the same.

Within the projections D of the thole-pin ring 0 is inserted thecross-head A of the thole-pin B and secured by the bolt E. The twoflanged rings F F are applied as follows: No. 1 F is secured to the carG by means of screws inserted in the hole H. The thole-pin ring U isthen slipped onto the ring thus secured so far as the flange will admit,and is followed by the flanged ring No. 2F,in the reverse order of No. 1F, and is fastened to its place, as shown in the perspective, by meansof screws inserted through the hole 0; in the thole-ring U, whichcorresponds in position to the holes H in the flanged rings F.

The oar G and the bracket j constitute no part of my invention; but

What I do claim, and desire to secure by Letters Patent, is

In an oar-lock, a thole-pin provided with a thole-pin ring hingedthereto, in combination with two flanged rings adapted to beinsertedfrom opposite sides within said thole-piu ring, to form'a bearingtherefor, and secured to the oar by screws or other suitable devices,substantiall y as and for the purpose set forth.

JULIUS G. GOODWIN.

Witnesses WILLIAM H. WOODHAM, EDWARD MOCAFFREY.

